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1 // Copyright 2011 The Chromium Authors. All rights reserved. | 1 // Copyright 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "config.h" | 5 #include "config.h" |
6 | 6 |
7 #include "GeometryBinding.h" | 7 #include "GeometryBinding.h" |
8 | 8 |
| 9 #include "third_party/khronos/GLES2/gl2.h" |
9 #include "CCRendererGL.h" // For the GLC() macro. | 10 #include "CCRendererGL.h" // For the GLC() macro. |
10 #include "GraphicsContext3D.h" | |
11 #include <public/WebGraphicsContext3D.h> | 11 #include <public/WebGraphicsContext3D.h> |
12 | 12 |
13 namespace cc { | 13 namespace cc { |
14 | 14 |
15 GeometryBinding::GeometryBinding(WebKit::WebGraphicsContext3D* context, const Fl
oatRect& quadVertexRect) | 15 GeometryBinding::GeometryBinding(WebKit::WebGraphicsContext3D* context, const Fl
oatRect& quadVertexRect) |
16 : m_context(context) | 16 : m_context(context) |
17 , m_quadVerticesVbo(0) | 17 , m_quadVerticesVbo(0) |
18 , m_quadElementsVbo(0) | 18 , m_quadElementsVbo(0) |
19 , m_initialized(false) | 19 , m_initialized(false) |
20 { | 20 { |
21 // Vertex positions and texture coordinates for the 4 corners of a 1x1 quad. | 21 // Vertex positions and texture coordinates for the 4 corners of a 1x1 quad. |
22 float vertices[] = { quadVertexRect.x(), quadVertexRect.maxY(), 0.0f, 0.0f,
1.0f, | 22 float vertices[] = { quadVertexRect.x(), quadVertexRect.maxY(), 0.0f, 0.0f,
1.0f, |
23 quadVertexRect.x(), quadVertexRect.y(), 0.0f, 0.0f, 0.
0f, | 23 quadVertexRect.x(), quadVertexRect.y(), 0.0f, 0.0f, 0.
0f, |
24 quadVertexRect.maxX(), quadVertexRect.y(), 0.0f, 1.0f,
0.0f, | 24 quadVertexRect.maxX(), quadVertexRect.y(), 0.0f, 1.0f,
0.0f, |
25 quadVertexRect.maxX(), quadVertexRect.maxY(), 0.0f, 1.
0f, 1.0f }; | 25 quadVertexRect.maxX(), quadVertexRect.maxY(), 0.0f, 1.
0f, 1.0f }; |
26 uint16_t indices[] = { 0, 1, 2, 0, 2, 3, // The two triangles that make up t
he layer quad. | 26 uint16_t indices[] = { 0, 1, 2, 0, 2, 3, // The two triangles that make up t
he layer quad. |
27 0, 1, 2, 3}; // A line path for drawing the layer bor
der. | 27 0, 1, 2, 3}; // A line path for drawing the layer bor
der. |
28 | 28 |
29 GLC(m_context, m_quadVerticesVbo = m_context->createBuffer()); | 29 GLC(m_context, m_quadVerticesVbo = m_context->createBuffer()); |
30 GLC(m_context, m_quadElementsVbo = m_context->createBuffer()); | 30 GLC(m_context, m_quadElementsVbo = m_context->createBuffer()); |
31 GLC(m_context, m_context->bindBuffer(GraphicsContext3D::ARRAY_BUFFER, m_quad
VerticesVbo)); | 31 GLC(m_context, m_context->bindBuffer(GL_ARRAY_BUFFER, m_quadVerticesVbo)); |
32 GLC(m_context, m_context->bufferData(GraphicsContext3D::ARRAY_BUFFER, sizeof
(vertices), vertices, GraphicsContext3D::STATIC_DRAW)); | 32 GLC(m_context, m_context->bufferData(GL_ARRAY_BUFFER, sizeof(vertices), vert
ices, GL_STATIC_DRAW)); |
33 GLC(m_context, m_context->bindBuffer(GraphicsContext3D::ELEMENT_ARRAY_BUFFER
, m_quadElementsVbo)); | 33 GLC(m_context, m_context->bindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_quadElements
Vbo)); |
34 GLC(m_context, m_context->bufferData(GraphicsContext3D::ELEMENT_ARRAY_BUFFER
, sizeof(indices), indices, GraphicsContext3D::STATIC_DRAW)); | 34 GLC(m_context, m_context->bufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices
), indices, GL_STATIC_DRAW)); |
35 | 35 |
36 m_initialized = true; | 36 m_initialized = true; |
37 } | 37 } |
38 | 38 |
39 GeometryBinding::~GeometryBinding() | 39 GeometryBinding::~GeometryBinding() |
40 { | 40 { |
41 GLC(m_context, m_context->deleteBuffer(m_quadVerticesVbo)); | 41 GLC(m_context, m_context->deleteBuffer(m_quadVerticesVbo)); |
42 GLC(m_context, m_context->deleteBuffer(m_quadElementsVbo)); | 42 GLC(m_context, m_context->deleteBuffer(m_quadElementsVbo)); |
43 } | 43 } |
44 | 44 |
45 void GeometryBinding::prepareForDraw() | 45 void GeometryBinding::prepareForDraw() |
46 { | 46 { |
47 GLC(m_context, m_context->bindBuffer(GraphicsContext3D::ARRAY_BUFFER, quadVe
rticesVbo())); | 47 GLC(m_context, m_context->bindBuffer(GL_ARRAY_BUFFER, quadVerticesVbo())); |
48 GLC(m_context, m_context->bindBuffer(GraphicsContext3D::ELEMENT_ARRAY_BUFFER
, quadElementsVbo())); | 48 GLC(m_context, m_context->bindBuffer(GL_ELEMENT_ARRAY_BUFFER, quadElementsVb
o())); |
49 unsigned offset = 0; | 49 unsigned offset = 0; |
50 GLC(m_context, m_context->vertexAttribPointer(positionAttribLocation(), 3, G
raphicsContext3D::FLOAT, false, 5 * sizeof(float), offset)); | 50 GLC(m_context, m_context->vertexAttribPointer(positionAttribLocation(), 3, G
L_FLOAT, false, 5 * sizeof(float), offset)); |
51 offset += 3 * sizeof(float); | 51 offset += 3 * sizeof(float); |
52 GLC(m_context, m_context->vertexAttribPointer(texCoordAttribLocation(), 2, G
raphicsContext3D::FLOAT, false, 5 * sizeof(float), offset)); | 52 GLC(m_context, m_context->vertexAttribPointer(texCoordAttribLocation(), 2, G
L_FLOAT, false, 5 * sizeof(float), offset)); |
53 GLC(m_context, m_context->enableVertexAttribArray(positionAttribLocation()))
; | 53 GLC(m_context, m_context->enableVertexAttribArray(positionAttribLocation()))
; |
54 GLC(m_context, m_context->enableVertexAttribArray(texCoordAttribLocation()))
; | 54 GLC(m_context, m_context->enableVertexAttribArray(texCoordAttribLocation()))
; |
55 } | 55 } |
56 | 56 |
57 } // namespace cc | 57 } // namespace cc |
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